Hand-wrench



P. B.l IDB. HAND WRENCH.

" (No Model.)

No. 492,626. Patented Peb. 28, 1893 MIMJI UNITED vSTATES PATENT OEEicE.

FRED B. IDE, OF TROY, ASSIGNOR TO NATHAN D. IDE, OF GORINTH,

NEW YORK.

HAN D-WRENCH.

SPECIFICATION forming part of Letters Patent No. 492,626, dated February 28, 1893.

Application iilerl November 10, 1892. Serial No. 451,490. (No model.)

To all whom it may concern.-

Be it known that l, FRED B. IDE, of the city of Troy, county of Rensselaer, and State of New York, have invented a new and useful Improvement in Wrenches, of which the following is a specification.

My invention relates to improvements upon hand wrenches, and more particularly to that class of them in which the shanks of the gripping jaws are made at right angles to thelatter, one of them being arranged in advance of the other, with the outer jaw shank adapted to slide in the wrench stock, and the other jaw shank at its inner end hinged to the stock within a socket; the object and purpose of my improvement upon this class ot' wrenches being to adapt themby construction so that the sliding shank may interlock with the stock when adjusted as to gripping area, by means of a key-piece, a cam, and an interlocking or latching spring lever operating the cam and key-piece.

Accompanying this specification to form a part of it there is a plate of drawings containing nine figures illustrating my invention with the same designation of parts by letter reference used in all of them.

Of these illustrations Figure l is a side elevation of a wrench containing my improvement, with the handle shank shown as broken apart for convenience of illustration, and with the cam lever shown as thrown up, and the key-piece illustrated as moved away from the serrated edge of the sliding jaw shank. Fig. 2 is a central vertical section taken from end to end through the shanks, stock, jaw, keypiece, cam, and lever. Fig. 3 is a cross-section taken on the line of Fig. 2. Fig. 4 is a side view of the cam and bifurcated latch lever, shown as detached. Fig. 5 is a top view of-the bifurcated earn lever, connected cam and its journals, shown as detached. Fig. 6 is a side elevation of the key-piece shown as detached. Fig. 7 is a bottom view of the keypiece and spring. Fig. 8 is a section taken transversely throughthe slot-part'of the socket at the latching end of the same, showing the latchcatches on each side of the slot in which the cam lever is operated to latch or interlock. Fig. 9 is a top View of part of the stock showing the slot made therein for the cam 1ever, showing also the latter with its bifurcated ends latched beneath the latch catches. Y The several parts of the wrench thus illustrated are designated by letter reference and the function of the parts is described as follows:

The letter J designates the outer jaw, and S its shankfmade to be at right angles to the latter, and prolonged to form the handle H.

The letter J2 designates the inner jaw, and S2 its shank, also made to he at right angles to the latter.

The letter A designates the stock made with the socket a2, the slide-way a3, the keypiece recess R, and the slot m, formed in the side of the latter. The shank of the inner jaw J2, at p, is pivoted to the socket and is made with the rounded journaling end e2, adapted to partially rotate in the rounded bearing face c3, formed at the inner end of the socket. v The letter d designates a spiral spring, made to scat in a recess r, formed in the inner face of the shank S2, and at its other end to bear against the socket side wall at W; and the function of this spring is to engage with the side of the shank S2, and to force the'jaw J2 outwardly so that its jaw face will open out away from alignment with the serrated face of the jaw J, to better adapt the entrance of a pipe between the jaws. The jaw shank S is arranged within the slide-way a3 formed in the socket in which it may be moved outwardly or inwardly to adjust its gripping capacity to the jaw J2. The shank J is serrated on its outer edge where within the socket as indicated at n.

The letter K designates a key-piece that is arranged within the socket recess R. This key-piece has its face where adjacent to the face of the shank S serrated aty so that when forced to engage with the latter the serrated faces of the shank and key-piece interlock.

The letter o designates a slot made centrally in the serrated face of the key-piece, and b2 a leaf spring arranged in said slot, and

the function of this spring b2 is to force the key-piece K away from its serrated engagement with the shank S. The outer face of this key-piece is made with a curved recess k2, and the recess Ris made with bearing sur- IOO ' within the curved recess k2.

faces E, nteriorly placed ateach side.of the'g surfaces E, with the cam C bearing upon and The letter `h2 designates a lever that is projected from the cam roller, and this lever isi `bifurcated so as to have spring arms O, with this lever adapted to be moved in the slotmw so that When the cam roller on its eccentric face C2 is made to engage With the curved re-f cess kand by VApulling down ,on the leyerh?, i, it forces the key-piece Ktoward the shank S', sothat the serrated faces of the latter engage With those of the key-piece. The letters .I designate catches formed on 1, each sidel of theslot m, underwhich by pinching -tggethgr l the-spring, arms 0,;thelatter-ar@ f latched to Athus hold the interlocked surfaces l of the key-pieceand ,shvank'S,7 ina lrigid .en-l` gagement. g AThe partsvthus arrangedareoperated as fol- 1 lows: Whenfthe jawdghasbeen ,moved out i byoperating-its shank in thelsocket slide,nn-: til a desired Width of gripareaiis hadbetween the two jaws, the levenhzis thenpulled down, i with the arms O forced together, andlatched 'y under the/catches Latfeach side of theslot' m. henthis isdone the serratedyface vof the key-pieceris caused to` engage with that of the As hankcSv, and the parts ,are firmly .coni nected. =Wheniit vis desired to setkthe -jaws at another ywidth of grip, thezlever hzis unlatched and thrown-up, when the spring bf, in the?` bottom of the key-piece; forces theflatter away from its engagement With the shank S. ,4 Having thus described xny invention, what I Claim, and desirezto secure byLettersPat-l cutis* :1. I n a Wrench, the-combination With-a stockj` made with v a socket, a slide-Way, andkey-piece recess havinga slot-at vits outer side, of an "1 outer jaw having a shank that is hinged at its inner end-to the stock Within .the socket; an; outer `jaw v provided with a shank made with: a serrated facefon rits .side next adjacent to. said recess, and arranged in said slide-Way; a= key-piece constructed with a serrated innert face and having thereina slot andspring, andA made With a rounded bearing surface on its:

outer face, and arranged Within said stock recess; a rollercam `constructed to journal in the inner face of said key-piece at each side of its slot, and to bear on the top of said keypiece; and a lever made with spring arms conneetedutorsaidcam roller, and constructed to latchinto said slot and to be operated substantially in the manner as and for the purcam-roller 0, havingy short shafts j, adapted toturn in ,bearing surfaces E, madeyin the inner faces of the recessslotvateachsidethereof, and to bear uponthe tip ofsaid `key-piece and =the@1e,ver,h2, connected-,to said cam roller,

yandat `itsfouterend'havingforrned armsfO, :0,

adapted@ latch messia slof, substantially vinthe,manner.as A,and -for the @purposes-.Set

forth.

3. {In awrench thecombinationwith astock having asocket,s1otted key-piecerecess, and slide-Way, substantially ,as described; of van `-outer jaw having ashank arrangedinfsaid slide-way, and thereat made ywith a ,serrated face;` akey-piece havinga serrated faceconistructed to lengage with a serra-ted "faceof `said shank and Ihaving a spring arranged in a .slotmadeon:its;serrated face; a cam roller arranged between said key-piece and-the inner Wall of the key-piece -recesssaid roller 5 having a lever adapted to latch intosaidkeypiece and constructedto be operated substantially inthe'manneras and ffor ythepurposes set forth.

Signed at Troy, New York, this :1st day of November, l892,.and in the presence of `the i two Witnesseswhose. names are` hereto written. 

